无效的属性发送到模型。 validation问题
我使用https://gist.github.com/basco-johnkevin/8436644的validation服务，目前在提交数据时遇到了一些问题。 这似乎也许validation服务不喜欢NaN值或我可能会错过一些东西。 有任何想法吗？
我的表单：
<div class="container"> <form action="/standardplacement/create" method="POST" role="form"> <div class="row-fluid"> <h2 class="form-signin-heading">Create a <em>Standard Media</em> placement</h2> <% if (req.session.flash && req.session.flash.error) { %> <% var errors = req.flash('error') %> <div class="alert alert-danger"> <button type="button" class="close" aria-hidden="true" data-dismiss="alert">×</button> <ul> <% Object.keys(errors).forEach(function(error) { %> <% Object.keys(errors[error]).forEach(function(error_message) { %> <% Object.keys(errors[error][error_message][0]).forEach(function(error_message_res) { %> <li><%- errors[error][error_message][0][error_message_res] %></li> <% }); %> <% }); %> <% }); %> </ul> </div> <% var t_results = req.flash('temp_results'); %> <% if(t_results[0]){ %> <% t_results = t_results[0]; sails.log.info("Results Restored"); %> <% } %> <% } %> </div> <div class="row-fluid"> <div class="form-group"> <label for="pName">Placement Name</label> <input type="text" name="name" id="pName" class="form-control" required="required" title="Name" placeholder="12/27 Homepage 300x250 Banner" /> </div> </div> <div class="row-fluid"> <blockquote> <p class="lead">General Specifications</p> </blockquote> </div> <div class="row-fluid"> <div class="form-group row"> <div class="col-xs-4"> <label for="pWidth">Width</label> <div class="input-group"> <input type="integer" name="width" id="pWidth" class="form-control" title="Width (in PX)" placeholder="300" /> <div class="input-group-addon">px</div> </div> </div> <div class="col-xs-4"> <label for="pHeight">Height</label> <div class="input-group"> <input type="integer" name="height" id="pHeight" class="form-control" title="Height (in PX)" placeholder="250" /> <div class="input-group-addon">px</div> </div> </div> </div> </div> <br/> <div class="row-fluid"> <div class="form-group"> <button type="submit" class="btn btn-lg btn-primary" type="submit">Create Placement</button> <input type="hidden" name="_csrf" value="<%= _csrf %>" /> </div> </div> </form> </div> 我的控制器：
create: function(req, res){ StandardPlacement.create( req.params.all() ).exec( function (error, placement) { sails.log( req.params.all() ); if(error) { sails.log(error); sails.log(error.ValidationError); if(error.ValidationError) { error_object = ValidationService.transformValidation(StandardPlacement, error.Validation); sails.log.warn(error_object); res.send({result: false, errors: error_object}); } } // After successfully creating the placement // redirect the user to the show action res.redirect('/standardplacement/show/' + placement.id); }); },
我的模特：
module.exports = { attributes: { name: { type: 'string', minLength: 2, required: true }, width: { type: 'integer', required: true }, height: { type: 'integer', required: true } }, validation_messages: { name: { required: 'You must supply a valid name for the placement. If you do not have a specific name, make up one.', minLength: 'The name must be more than one character long.' }, width: { required: 'You must supply a width value in pixels.' }, height: { required: 'You must supply a height value in pixels.' }, } };
api / services / ValidationService.js中的服务：
/** * Takes a Sails Model object (eg User) and a ValidationError object and translates it into a friendly * object for sending via JSON to client-side frameworks. * * To use add a new object on your model describing what validation errors should be translated: * * module.exports = { * attributes: { * name: { * type: 'string', * required: true * } * }, * * validation_messages: { * name: { * required: 'you have to specify a name or else' * } * } * }; * * Then in your controller you could write something like this: * * var validator = require('sails-validator-tool'); * * Mymodel.create(options).done(function(error, mymodel) { * if(error) { * if(error.ValidationError) { * error_object = validator(Mymodel, error.Validation); * res.send({result: false, errors: error_object}); * } * } * }); * * @param model {Object} An instance of a Sails.JS model object. * @param validationErrors {Object} A standard Sails.JS validation object. * * @returns {Object} An object with friendly validation error conversions. */ exports.transformValidation = function(model, validationError) { sails.log.info("Validating Submission"); var validation_response = {}; var messages = model.validation_messages; validation_fields = Object.keys(messages); validation_fields.forEach(function(validation_field) { if(validationError[validation_field]) { var processField = validationError[validation_field]; processField.forEach(function(rule) { if(messages[validation_field][rule.rule]) { if(!(validation_response[validation_field] instanceof Array)) { validation_response[validation_field] = new Array(); } var newMessage = {}; newMessage[rule.rule] = messages[validation_field][rule.rule]; validation_response[validation_field].push(newMessage); } }); } }); sails.log.info("Validation Complete!"); return validation_response; };
错误：
error: Sending 500 ("Server Error") response: TypeError: Cannot read property 'width' of undefined at /Users/me/Sites/specs/api/services/ValidationService.js:49:22 at Array.forEach (native) at Object.exports.transformValidation (/Users/me/Sites/specs/api/services/ValidationService.js:47:21) at /Users/me/Sites/specs/api/controllers/StandardPlacementController.js:34:39 at bound (/usr/local/lib/node_modules/sails/node_modules/lodash/dist/lodash.js:957:21) at applyInOriginalCtx (/usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/utils/normalize.js:416:80) at wrappedCallback (/usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/utils/normalize.js:326:16) at _normalizeCallback.callback.error (/usr/local/lib/node_modules/sails/node_modules/waterline/node_modules/node-switchback/lib/normalize.js:42:31) at _switch (/usr/local/lib/node_modules/sails/node_modules/waterline/node_modules/node-switchback/lib/factory.js:33:28) at /usr/local/lib/node_modules/sails/node_modules/waterline/lib/waterline/query/dql/create.js:51:22 [TypeError: Cannot read property 'width' of undefined]
在和#sailsjs中的一些人交谈之后，我明白了。 结束从控制器中删除创build方法。 用以下方式更新api / responses / badRequest.js。
在badRequest.js中：
var referringView = req.header('Referer').replace(req.protocol + "://" + req.host + ":" + req.port + '/', ''); var errors = data.invalidAttributes; var error_object = {}; if(errors) { error_object = ValidationService.transformValidation(StandardPlacement, errors); return res.view(referringView, {result: false, errors: error_object}); }
在查看（读取/显示错误）：
<% if (res.locals && res.locals.errors) { %> <% var errors = res.locals.errors; %> <div class="alert alert-danger"> <button type="button" class="close" aria-hidden="true" data-dismiss="alert">×</button> <ul> <% Object.keys(errors).forEach(function(error) { %> <% Object.keys(errors[error]).forEach(function(error_message) { %> <% sails.log(errors[error][error_message]); %> <% Object.keys(errors[error][error_message]).forEach(function(error_message_res) { %> <li><%- errors[error][error_message][error_message_res] %></li> <% }); %> <% }); %> <% }); %> </ul> </div> <% var t_results = req.flash('temp_results'); %> <% if(t_results[0]){ %> <% t_results = t_results[0]; sails.log.info("Results Restored"); %> <% } %> <% } %>
只需添加下面的代码行即可查看错误的响应
SomeModel.create({}).then(function(){ }).catch(function(err){ console.log(err.ValidationError); })